If a person loses weight for a period of time and gains weight for a period of time, is it good for his health?

Definitely not good. But there are also special circumstances.

If you used to be too thin, gaining weight can strengthen your physique.

But if it is simple obesity, the situation is not so good. First of all, it is difficult to lose weight again. Secondly, even if you lose weight successfully, the stretched skin will become very relaxed.

Therefore, it is the most scientific to gain weight or lose weight with guidance.

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